We're Open!

Find out what we’re doing to keep you safe.

Our blast doors are reopening on February 2, 2022!

We look forward to safely welcoming you back underground!

In accordance with the Government of Ontario guidelines, the Diefenbunker will reopen on Wednesday, February 2, 2022, operating at 50% capacity. We strongly recommend buying your tickets online in advance of your visit to the museum to ensure there are still spots available.

The safety of our visitors, staff, and volunteers is our top priority — find out how we’re keeping you safe.

When you’re ready, we’re ready for you. We thank you for your patience and continued support.

When you’re ready, we’re ready for you.

We’re open! We look forward to welcoming you back underground.

Proof of vaccination and photo ID are required.

To ensure your safety, and that of your family, as well as our staff and volunteers, we’ve put extensive safety measures in place, changed how you purchase your tickets, and introduced some new ways to explore the Bunker.

Please read our detailed safety protocols on our We’re Ready for You page.

Diefenbunker Canada’s Cold War Museum is delighted to announce it has been awarded the #SafeTravels Stamp.

The Safe Travels Stamp is an international symbol designed to allow travellers to recognize governments and companies around the world, which have adopted health and hygiene, standardized protocols – so consumers can experience ‘Safe Travels’.



Wednesday – Friday: 10:00 a.m. – 4:00 p.m.

Saturday – Sunday: 10:00 a.m. – 3:00 p.m.

We suggest at least 1 hour to explore the museum.

We strongly recommend buying your tickets online in advance of your visit to the museum to ensure there are still spots available. As of December 20, 2021, the museum is operating at 50% capacity.

Buy Tickets

*Proof of vaccination and photo ID are required.
*The Admissions desk closes 30 minutes before the museum closes. Tickets cannot be purchased after this time.

Special Hours & Closures

Closed on statutory holidays

January 5 – January 26, 2022: The museum is temporarily closed in accordance with Government of Ontario guidelines to help prevent the spread of COVID-19.

See all holiday hours & special closures here.


*NEW* Virtual Educational Programs | Ongoing

Now accepting 2022 bookings. Experience Cold War history from the comfort and safety of your homes or classrooms. More info.

2021 Artist-in-Residence Exhibition | November 6, 2021 – January 31, 2022  *EXTENDED* to February 27, 2022

Akìmazinàzowin | An Image of the Land features work by Algonquin artist Mairi Brascoupé. Admission is included with general admission to the museum. More info.


We have an informative free Audio Guide that shares the history and stories of the Diefenbunker.

While there is now free Wi-Fi throughout the Bunker, we encourage you to download the Audio Guide to your preferred device before your visit. Don’t forget your earbuds/headphones!

Download our Audio Guide .mp3 (audio only) in:









You can now access additional visual content to accompany the Audio Guide – photos, videos, and archival materials – through the online Audio Guide App.

About Canada’s Cold War Museum

The Diefenbunker is a massive four-storey underground bunker, built between 1959 and 1961. During the Cold War, top officials were to take shelter here in the event of a nuclear war. It was active as Canadian Forces Station Carp until 1994.

Today, it operates as a not-for-profit, charitable museum with award-winning tours and programs.

Let’s learn more about the Diefenbunker from home with our collection of online activities and resources. You can explore:

If you have questions, let’s connect on Facebook, Instagram, or Twitter. We will happily answer any of your questions.

About the Cold War

The Cold War is the period between the end of the Second World War in 1945 and ends with the fall of the Berlin Wall in 1989, followed by the collapse of the Soviet Union in 1991. It was a period of tense conflict between the United States and the Soviet Union and each country’s respective allies.

Learn more in this 2-minute video from Historica Canada explaining the Cold War and Canada’s role.

The Machine Room Virtual Tour

Did you know?

  • The bunker ran on hydroelectric power during its years of operation, much like it is today. In the event of a lockdown situation it was important that the bunker continued to be powered.
  • The machine room had 4 diesel generators to power the bunker. Only 2 generators were required to keep the bunker powered in an outage. The first generator would provide power to communications only. The second was to provide power to the rest of the bunker.

Click on the video image to learn more about the machine room and all its functions, including through a 3D walkthrough and an interview with one of the employees who worked in the machine room.

Virtual Tours

You can view the Diefenbunker from any device and even with VR goggles if you have them! Click on the image to open the tour.

Please note that due to the working nature of our Machine Room, the space is closed to visitors. You can enjoy the virtual tour below to get a safe look inside!

Machine Room

400 Level

300 Level

200 Level & Vault

Ways to Support

During the unprecedented times, we’ve had many people ask to help. Thank you. 

As a private, non-profit museum, we depend on visitors for 75% of our operating revenue. We need your support now more than ever. There are many easy ways that you can best support us so we can continue to teach, inform, and inspire you through lessons learned from the Cold War. See below and click on the blue squares to follow the links!

We miss you all and can’t wait to reopen our blast doors and welcome you underground again.

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